Anyone who believes that you only go to Heaven if you're a Catholic hasn't read Romans.
Heck, Mel Gibson has publically said that his wife (an episcopalian) is going to hell. just an interesting point, why would you voluntarily give money to someone who thinks you are going to hell?
If I had a buck for every time we've discussed this movie on this forum and somebody said, "Mell Gibson said/believes [fill in misquote/ludicrous bovine effluent charge here]" I would be writing this from the back of my stretch limo. Citation, please?
Boy does THAT bring back memories...
When I was a young lad and was going to catechism classes, an old nun said as much to us all. The next day when I got to my public school I looked at my classmates who weren't Catholic and thought, wow they're all going to hell - but why? They were all nice. It seemed so unfair. Thank goodness that teaching was changed.